It was mentioned in some of my other threads on my app on that my code was incorrect because the apply button is present. I understand that now. It was said to collect the controls and then when apply is hit to send the data.
I have now idea how to approach that. So for the sake of general education. I have 1 property sheet and 5 property pages. For the sake of just general controls in use. Between all the 5, there are only radio controls and buttons, no edit controls (yet).
Let's assume there are 2 radios buttons and 1 button on each page.. where page 1 is radio1, radio2, button 1 and page 2 is radio3, radio4, button2....and so on.
I know that when the user selects something like a button or radio that the IsModified(TRUE) needs to be called to enable the apply button from grayed to active.
What would the code look like to scan all the controls and then apply them? I've never done it and I can't seem to find an example that isn't already super busy to gain the understanding of how to do it.
Anyone have a tutorial or code snippet or build a primer from the controls that I described above that could demonstrate how to execute this?
Update:
Ok so I have the DDX variables added:
void CSettingsUserTabs::DoDataExchange(CDataExchange* pDX)
{
CMFCPropertyPage::DoDataExchange(pDX);
DDX_Control(pDX, STYLE_3D_USER, m_style_3d);
DDX_Control(pDX, STYLE_FLAT_USER, m_style_flat);
DDX_Control(pDX, STYLE_FLAT_SHARED_HORZ_SCROLL_USER, m_style_flat_shared_h_scroll);
DDX_Control(pDX, STYLE_3D_SCROLLED_USER, m_style_3d_scroll);
DDX_Control(pDX, STYLE_3D_ONENOTE_USER, m_style_onenote);
DDX_Control(pDX, STYLE_3D_VS2005_USER, m_style_vs2005);
DDX_Control(pDX, STYLE_3D_ROUNDED_USER, m_style_3d_rounded);
DDX_Control(pDX, STYLE_3D_ROUNDED_SCROLL_USER, m_style_3d_rounded_scroll);
}
My radio selection look like:
void CSettingsUserTabs::OnBnClicked3dUser()
{
//AfxGetMainWnd()->SendMessage(WM_COMMAND, STYLE_3D_USER);
UpdateData(TRUE);
}
void CSettingsUserTabs::OnBnClickedFlatUser()
{
// TODO: Add your control notification handler code here
//AfxGetMainWnd()->SendMessage(WM_COMMAND, STYLE_FLAT_USER);
UpdateData(TRUE);
}
..... and the rest of them....
So to me, when I click any radio button, I expect that it scans all of controls on that property page? If so, all the variables have the values..do I call IsModified(); to enable the apply button...which then executes all the radio values i.e. only one selected? Is that the flow?
Update 2:
So this is what my modal dialog code is in MainFrame.cpp:
void CMainFrame::OnSettingsTools()
{
SettingsSheet SettingsSheet(L"Application Settings");
CSettingsPowerUser pgePowerUser;
CSettingsToolbars pgeToolbars;
CSettingsTheme pgeTheme;
CSettingsUserTabs pgeUserTabs;
CSettingsReset pgeReset;
SettingsSheet.AddPage(&pgeToolbars);
SettingsSheet.AddPage(&pgeTheme);
SettingsSheet.AddPage(&pgeUserTabs);
SettingsSheet.AddPage(&pgePowerUser);
SettingsSheet.AddPage(&pgeReset);
INT_PTR nRet = -1;
nRet = SettingsSheet.DoModal();
// Handle the return value from DoModal
switch (nRet)
{
case -1:
AfxMessageBox(_T("Dialog box could not be created!"));
break;
case IDABORT:
// Do something
AfxMessageBox(_T("ABORT!"));
break;
case IDOK:
// Do something
OnUserTabStyles(1);
AfxMessageBox(_T("OK!"));
break;
case IDCANCEL:
// Do something
AfxMessageBox(_T("CANCEL"));
break;
default:
// Do something
break;
};
}
The routine to verify if any of the radios buttons are changed in SettingsTabs.cpp:
void CSettingsUserTabs::OnTabRadioClicked(UINT nCmdID)
{
BOOL IsChecked = nCmdID;
CheckRadioButton(STYLE_3D_USER, STYLE_3D_ROUNDED_SCROLL_USER, nCmdID);
UpdateData(TRUE);
m_tabCmdID = nCmdID;
SetModified();
}
What the member variables look like in SettingsUserTabs.cpp:
void CSettingsUserTabs::DoDataExchange(CDataExchange* pDX)
{
CMFCPropertyPage::DoDataExchange(pDX);
DDX_Radio(pDX, STYLE_3D_USER, m_style_3d);
DDX_Radio(pDX, STYLE_FLAT_USER, m_style_flat);
DDX_Radio(pDX, STYLE_FLAT_SHARED_HORZ_SCROLL_USER, m_style_flat_h_scroll);
DDX_Radio(pDX, STYLE_3D_SCROLLED_USER, m_style_3d_scroll);
DDX_Radio(pDX, STYLE_3D_ONENOTE_USER, m_style_3d_onenote);
DDX_Radio(pDX, STYLE_3D_VS2005_USER, m_style_vs2005);
DDX_Radio(pDX, STYLE_3D_ROUNDED_USER, m_style_3d_rounded);
DDX_Radio(pDX, STYLE_3D_ROUNDED_SCROLL_USER, m_style_3d_rounded_scroll);
}
What the constructor looks like in SettingsUserTabs.cpp:
CSettingsUserTabs::CSettingsUserTabs()
: CMFCPropertyPage(IDD_SETTINGS_TABS)
, m_style_3d(FALSE)
, m_style_flat(FALSE)
, m_style_flat_h_scroll(FALSE)
, m_style_3d_scroll(FALSE)
, m_style_3d_onenote(FALSE)
, m_style_vs2005(FALSE)
, m_style_3d_rounded(FALSE)
, m_style_3d_rounded_scroll(FALSE)
, m_tabCmdID(FALSE)
{
}
This issue I'm seeing now is when I try to use the member variable m_tabCmdID it is coming back to unknown identifier so I'm not sure why the member variable isn't be seen. I am was expecting to use it like OnUserTabStyles(m_tabCmdID); so that it would pass the argument of the selected button to the method OnUserTabStyles. For now I just dumped a 1 in there to see if the mechanism works. I just am not clear how to access the member variable from the SettingsUserTabs.cpp from the IDOK. What am I missing?
EDIT: The range of options are sequential in the resource.h as 200-207, that is something I'm aware of and I know many don't like range options as they can get corrupted...this is my code, so I have no worries about the range being messed with.
Update 3:
Ok, so I finally understand the mechanism that Constantine described with the help of:
https://helgeklein.com/blog/2009/10/radio-buttons-in-mfc-visual-studio-2008-c/
I didn't have the tab order right nor did I have the first control set to true for the group.
With that, I now get the values 0-7 mentioned in the button group when I debug as I click each radio button based on its position in the group from 0-7 i.e. 8 buttons. Here is what the code looks like now.
SettingsUserTabs.cpp:
CSettingsUserTabs::CSettingsUserTabs()
: CMFCPropertyPage(IDD_SETTINGS_TABS)
, m_style_tabs(FALSE)
{
}
void CSettingsUserTabs::DoDataExchange(CDataExchange* pDX)
{
CMFCPropertyPage::DoDataExchange(pDX);
DDX_Radio(pDX, STYLE_3D_USER, m_style_tabs);
}
void CSettingsUserTabs::OnTabRadioClicked(UINT nCmdID)
{
UpdateData(TRUE);
BOOL RadioValueSelected = m_style_tabs; // only here to see 0-7 value for debugging only, not needed, test only
SetModified();
}
The mainframe.cpp above (Update 2): void CMainFrame::OnSettingsTools() is still the same.
So now here is where my question still isn't clear, I call the domodal from mainframe.cpp, the member variable m_style_tabs is in SettingsUserTabs.cpp. When I try to access the member variable, it says unknown identifier when I try to do something like this after the domodal int temp = m_styles_tabs;. I have a this in the mainframe.cpp
void CMainFrame::DoDataExchange(CDataExchange* pDX)
{
// TODO: Add your specialized code here and/or call the base class
CMDIFrameWndEx::DoDataExchange(pDX);
}
I would expect that the member would be seen in mainframe.cpp so I can process it after the domodal which is what I thought the whole point of this is?
How do I access the member variable so I can do the OnApply to it? I think I almost got it, I am just unclear on how to execute the last few steps for the actual apply itself.
Update 4:
The reason I ask about the restart is when the user selects the tabs property page and choose 1 of 8 choices, that option is stored in the registry and read during the Oncreate and then uses that style. Since it is OnCreate I haven't found a way to "redraw" or use the new tab setting except to restart the app. So by doing the reg save > respawn > end old ...I would want the dialog to reopen at the same tab property page so the user can see what the changes are if the apply was selected...vs. some dialog that says "restart"..or whatever. Below is the code used to demonstrate how it is working now.
OutputWnd.cpp
int COutputWnd::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDockablePane::OnCreate(lpCreateStruct) == -1)
return -1;
CRect rectDummy;
rectDummy.SetRectEmpty();
// Create User Define tab style:
int UserTabStyle = AfxGetApp()->GetProfileInt(_T("Settings"), _T("UserTabStyle"), 0); //Get value from registry
// If the key doesn't exist, UserTableStyle will be 0 or FALSE;
if (UserTabStyle != FALSE && UserTabStyle <= 8) { // User selected tab style type
int EnumUserTabStyle = UserTabStyle - 1; // Fix enum if key doesn't exist.
if (!m_wndTabs.Create(static_cast<CMFCTabCtrl::Style>(EnumUserTabStyle), rectDummy, this, 1))
{
TRACE0("Failed to create output tab window\n");
return -1; // fail to create
}
}
else { // Default tabs style if Reg key does not exist i.e. new install/program reset
if (!m_wndTabs.Create(CMFCTabCtrl::STYLE_FLAT, rectDummy, this, 1))
{
TRACE0("Failed to create output tab window\n");
return -1; // fail to create
}
}
… rest of function....
Update 5:
Here is the Apply in use from SettingsUserTabs.cpp:
BOOL CSettingsUserTabs::OnApply()
{
// TODO: Add your specialized code here and/or call the base class
AfxGetApp()->WriteProfileInt(_T("Settings"), _T("UserTabStyle"), m_style_tabs); // Save value to registry
return CMFCPropertyPage::OnApply();
}
Update 6:
Everything to this point is working, I ran into a road block trying to apply lessons learned here and at this link:
MFC MDI Substituting a class member dynamically
What was done in this topic was for the OutputWnd pane which works brilliantly! My MDI opens a file and uses CTabView and using the link shown in Update 6 allowed me to change the tabs on boot. Now that I have the OutputWnd doing it with OnApply, I'm trying to apply it to the document view when a file is loaded. I'm running into an access violation when I call the new function I created in TrainView.cpp and calling it from UserSettingsTabs.cpp. I thought it was the static_cast operation, but even if I do a simple bold using GetControlTabs() that also crashes (Shown in the commented out code, was on boot, now in OnApply to test theory). So clearly I need to capture the MDI document but not sure how that is done. I thought it would be as simple as:
GetTabControl().ModifyTabStyle(static_cast<CMFCTabCtrl::Style>(EnumUserTabStyle));
But when that crashed with a Cx000000005 access violation, I knew something was wrong on my end. I can't modify the CTabView operation, so I'm looking to see if we can fix what I'm doing wrong to have the OnApply change the tab styles without restarting as done in the OutputWnd we just fixed.
So as it stands, the OnApply that is working and now modded to try an integrate the CTabView functionality:
SettingsUserTabs.cpp:
BOOL CSettingsUserTabs::OnApply()
{
BOOL bResult = CMFCPropertyPage::OnApply();
if (bResult)
{
AfxGetApp()->WriteProfileInt(_T("Settings"), _T("UserTabStyle"), m_style_tabs); // Save value to registry
((CMainFrame*)AfxGetMainWnd())->m_wndOutput.m_wndTabs.ModifyTabStyle((CMFCTabCtrl::Style)m_style_tabs);
((CMainFrame*)AfxGetMainWnd())->m_wndOutput.m_wndTabs.RecalcLayout();
CTrainView* TrainTabs; // User Call from anywhere method
TrainTabs->TrainDocUpdateTabsControl();
}
return bResult;
}
I added the function CTrainView::TrainDocUpdateTabsControl() to update the tabs...the rest of the code is fully operation i.e. void CTrainView::OnInitialUpdate()
The TrainView.cpp:
IMPLEMENT_DYNCREATE(CTrainView, CTabView)
void CTrainView::OnInitialUpdate()
{
CMainFrame* pMainFrame = (CMainFrame*)AfxGetMainWnd();
pMainFrame->m_wndOutput.AddStringDebugTab(_T("Debug: TrainView--CTrainView::OnInitialUpdate()."));
// add views // cmb
AddView(RUNTIME_CLASS(CInformationView), AfxStringID(IDS_INFORMATION));
AddView(RUNTIME_CLASS(CChaptersView), AfxStringID(IDS_CHAPTERS));
// Nicely hack to access protected member
class CMFCTabCtrlEx : public CMFCTabCtrl
{
public:
void SetDisableScroll() { m_bScroll = FALSE; }
};
// One-Liner to Disable navigation control
((CMFCTabCtrlEx*)&GetTabControl())->SetDisableScroll();
GetTabControl().EnableTabSwap(TRUE);
GetTabControl().SetLocation(CMFCBaseTabCtrl::Location::LOCATION_BOTTOM);
//GetTabControl().SetActiveTabBoldFont(TRUE);
GetTabControl().EnableAutoColor(TRUE);
// Modify User Define tab style:
int UserTabStyle = AfxGetApp()->GetProfileInt(_T("Settings"), _T("UserTabStyle"), 0); //Get value from registry
// If the key doesn't exist, UserTableStyle will be 0 or FALSE;
if (UserTabStyle != FALSE && UserTabStyle <= 8) { // User selected tab style type
int EnumUserTabStyle = UserTabStyle - 1; // Fix enum if key doesn't exist.
GetTabControl().ModifyTabStyle(static_cast<CMFCTabCtrl::Style>(EnumUserTabStyle));
}
else { // Default tabs style if Reg key does not exist i.e. new install/program reset
GetTabControl().ModifyTabStyle(CMFCTabCtrl::STYLE_FLAT);
}
CTabView::OnInitialUpdate();
}
void CTrainView::TrainDocUpdateTabsControl()
{
CTabView::AssertValid();
GetTabControl().SetActiveTabBoldFont(TRUE); << CAUSES Cx000000005 ACCESS ERROR CRASH WHEN CALLED.
//int EnumUserTabStyle;
//int UserTabStyle = AfxGetApp()->GetProfileInt(_T("Settings"), _T("UserTabStyle"), 0); //Get value from registry
//((CMainFrame*)AfxGetMainWnd())->GetTabControl().ModifyTabStyle(static_cast<CMFCTabCtrl::Style>(EnumUserTabStyle));
}
Update 6 EDIT:
The tabview is created from Application.cpp like this:
//Load Train Template
m_pkDocTrainTemplate = new CMultiDocTemplate(
IDR_TRAIN, // Loads TRAIN operation
RUNTIME_CLASS(CTrainDoc),
RUNTIME_CLASS(CChildFrame),
RUNTIME_CLASS(CTrainView));
AddDocTemplate(m_pkDocTrainTemplate);
I tried to cast the m_pkDocTrainTemplate as I thought that was the pointer? Since it is MDI, I wasn't sure if there was an index issue since there can be multiple docs open simultaneously?
Below is an example of an application I wrote some time ago. It's a simple "Settings" dialog. Unlike yours, this one is derived from CDialogEx. But as CPropertyDialog is derived from CDialog, these apply in your case too.
Using the Wizard, I added member variables to the dialog class, bound to the dialog controls. Choose "Value", rather than "Control" in the "Category" combo in the Wizard. These are declared in the class definition. For simplicity, I only show three. There is a CString, an int and a BOOL variable, bound to an edit, a combo-box (drop-down list) and a check-box control respectively.
class CSettingsDlg : public CDialogEx
{
.
.
public:
CString m_DBConn;
int m_DumpSQL;
BOOL m_bLineNums;
}
In the implementation, the Wizard has modified the constructor and the DoDataExchange() member functions:
CSettingsDlg::CSettingsDlg(CWnd* pParent /*=NULL*/)
: CDialogEx(CSettingsDlg::IDD, pParent)
, m_DBConn(_T(""))
, m_DumpSQL(0)
, m_bLineNums(FALSE)
{
}
void CSettingsDlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
DDX_Text(pDX, IDC_EDIT_DBCONN, m_DBConn);
DDV_MaxChars(pDX, m_DBConn, 255);
DDX_CBIndex(pDX, IDC_COMBO_DUMPSQL, m_DumpSQL);
DDV_MinMaxInt(pDX, m_DumpSQL, 0, 2);
DDX_Check(pDX, IDC_CHECK_LINENUMS, m_bLineNums);
}
The values in the constructor are the initial (default) ones. The DoDataExchange() function calls the DDX/DDV routines. The DDX routines perform the transfer of data (controls<->variables), while the DDV ones the validation - they are optional. The DoDataExchange() function is called by UpdateData(). Also, the default implementation of OnOK() calls UpdateData(TRUE), and if successful closes the dialog.
You will need to enable the Apply button if something has been modified. You can capture notification messages like EN_CHANGE, EN_UPDATE, BN_CLICKED etc (add an event in the property editor) and call the SetModified() function - this can prove quite tedious, but I can't see any other way to do it.
Such a dialog class can be used in the application as shown below:
void CChildView::OnSetoptions()
{
// Create a Settings-dialog class instance
CSettingsDlg sd; // Main application window as parent - will block every UI item in the application
// Set initial values for the member variables
sd.m_DBConn = szDBconn;
sd.m_DumpSQL = nDumpSQL;
sd.m_bLineNums = bDumpLineNums;
if (sd.DoModal() == IDOK)
{
// Store the values entered by the user
lstrcpyn(szDBconn, sd.m_DBConn, MAX_PATH);
nDumpSQL = sd.m_DumpSQL;
bDumpLineNums = sd.m_bLineNums;
}
}
EDIT :
I have a usage example in the code section just above. The procedure is create an instance of the dialog class, set the member variables' values (initial values, eg read from the registry), call DoModal() and if successful store (copy) the variables somewhere else (if not discard them). This should be done in some event handler, like CMainFrame::OnSettingsTools() in Update2. The CMainFrame::DoDataExchange() override makes no sense.
It's quite strange that you can't access the m_style_tabs variable. Isn't it a non-static, public member of the CSettingsUserTabs class? It should be declared in SettingsUserTabs.h. Won't it work if you acceess it as pgeUserTabs.m_style_tabs? In the CSettingsUserTabs class functions it can accessed simply as m_style_tabs. Also I see it is initialized as FALSE in the constructor. Is it a BOOL and not an int? (btw BOOL is defined as int in Win32, so the compiler won't complain) But the Wizard generates an int variable for radio-buttons, optionally with range validation as well.
Another point, you don't normally need to call UpdateData(TRUE) in CSettingsUserTabs::OnTabRadioClicked(). Please leave only the SetModified() call there. UpdateData(TRUE) is typically called in the OnOK() function. And usually you don't need to override these, because the default implementation is sufficient. The CPropertyPage documentation btw mentions that The default implementation of OnApply calls OnOK.
EDIT 2 :
In OnApply() you should first check if validation was successful. Also, OnCreate() isn't a "method" that can be called directly. It should be considered an "event". It's called by the framework when a window is created. You should instead call Create(). In your case you can destroy the Output Window and create it anew (with the new style). But, I see that the CMFCTabCtrl class has a ModifyTabStyle() function, which you can try calling, (without destroying the windows and creating it again). So, your code would become:
BOOL CSettingsUserTabs::OnApply()
{
BOOL bResult = CMFCPropertyPage::OnApply();
if (bResult)
{
AfxGetApp()->WriteProfileInt(_T("Settings"), _T("UserTabStyle"), m_style_tabs); // Save value to registry
((CMainFraime*)AfxGetMainWnd())->m_wndOutput.m_wndTabs.ModifyTabStyle((CMFCTabCtrl::Style)m_style_tabs);
}
return bResult;
}
The above code won't compile, because the m_wndOutput and m_wndTabs members are protected. You will have to make them public.
I am working with a MFC application, and would like to remove the dynamic entry that appears under "Arrange Icons".
I am not sure how this is added to the application, or how could I switch that off?
The list of open windows is added to the "Window" menu by the MFC framework, in the application's main window handler for the WM_INITMENUPOPUP command. (Actually, the framework adds the items to all menus that already contain any command with an ID between AFX_IDM_WINDOW_FIRST and AFX_IDM_WINDOW_LAST – which includes the "Cascasde," "Tile..." and "Arrange Icons" default values.)
You can remove these items by adding the ON_WM_INITMENUPOPUP() handler to your frame window's message map and overriding that frame's OnInitMenuPopup() member function.
Assuming your main frame is derived from the CMDIFrameWnd class, this override would look something like the following:
void MyFrameWnd::OnInitMenuPopup(CMenu *pPopupMenu, UINT nIndex, BOOL bSysMenu)
{
CMDIFrameWnd::OnInitMenuPopup(pPopupMenu, nIndex, bSysMenu);// Call base class FIRST
// <Insert any other code for your override>
UINT commID = AFX_IDM_FIRST_MDICHILD; // MFC gives the first item this ID
BOOL hadID;
do {
hadID = pPopupMenu->RemoveMenu(commID, MF_BYCOMMAND);
++commID;
} while (hadID);
return;
}
The declaration of the function in your class should properly have the afx_msg attribute, as shown below, although this is generally defined as 'nothing' in the recent MFC versions:
class MyFrameWnd : public CMDIFrameWnd
{
//...
protected:
afx_msg void OnInitMenuPopup(CMenu *pPopupMenu, UINT nIndex, BOOL bSysMenu);
//...
You could also reduce the removal 'loop' code to the following single line, if you prefer such compressed code:
for (UINT commID = AFX_IDM_FIRST_MDICHILD; Menu->RemoveMenu(commID, MF_BYCOMMAND); ++commID) ; // Empty loop
Note that this removal process will leave a 'separator' at the bottom of your application's "Window" menu; removing this as well would involve a bit more work, as that separator doesn't have a command ID – so you would need to determine its position (index) in the menu and call the RemoveMenu() function using that index and the MF_BYPOSITION flag as the second argument.
Using the code from the first snippet, and assuming that separator is at the very end of your menu, this could be achieved by adding the following code after the removal loop:
if (commID > AFX_IDM_FIRST_MDICHILD + 1) { // We removed at least one item, so ...
int nItems = Menu->GetMenuItemCount(); // ... remove the separator,
pPopupMenu->RemoveMenu(nItems - 1, MF_BYPOSITION); // assuming it's the last item!
}
The MFC ribbon bar has a menu item labelled 'Minimize the ribbon'. When you select it, only the headers of each category are shown, and the ribbon pops up when the headers are clicked. I'd like to programmatically force a ribbon into this state. Unfortunately, the only method I can find is ToggleMimimizeState() [sic], which will either put it into this state or take it out depending on its current state.
Looking at the MFC source code, the way the menu command works is through this code:
case idMinimize:
if (m_pActiveCategory != NULL)
{
ASSERT_VALID(m_pActiveCategory);
m_pActiveCategory->ShowElements(FALSE);
RedrawWindow();
}
m_pActiveCategory can be obtained from outside of the CMFCRibbonBar class through the GetActiveCategory() method, but unfortunately the category's ShowElements() method is protected and I cannot see a way of achieving the same effect with the public methods.
Neither does there seem to be an obvious way of determining whether the ribbon is currently minimized.
Is there something I'm missing, or do I just have to guess at the current state?
Derive two new classes from CMFCRibbonBar and CMFCRibbonCategory
class MyCMFCRibbonCategory: public CMFCRibbonCategory
{
public:
void force_ShowElements(BOOL todo)
{
ShowElements(todo);
}
};
class MyRibbonBar: public CMFCRibbonBar
{
public:
BOOL is_minimized()
{
return m_dwHideFlags == AFX_RIBBONBAR_HIDE_ELEMENTS;
}
void minimize_me(BOOL show_minimized)
{
MyCMFCRibbonCategory* cc = (MyCMFCRibbonCategory*)GetActiveCategory();
if (cc != NULL)
{
cc->force_ShowElements(!show_minimized);
RedrawWindow();
}
}
};
then change in your CMainframe from
CMFCRibbonBar m_wndRibbonBar;
to
MyRibbonBar m_wndRibbonBar;
Now in your code you can use the new two members:
BOOL MyRibbonBar::is_minimized()
void MyRibbonBar::minimize_me(BOOL show_minimized)
Basic example:
void CMainFrame::OnButton2()
{
if( m_wndRibbonBar.is_minimized() )
m_wndRibbonBar.minimize_me(FALSE);
else
m_wndRibbonBar.minimize_me(TRUE);
}
Hope it can help.
A combination of the above worked for me. That is, I wanted to use the Ribbon as a tabbed set of extra functions on a main menu. However, I didn't want the ribbon to have the ability to stay maximized. I only wanted the user to click, see a few actions and after that, disappear.
In short, prevent the ribbon from docking, or staying maximized. Whatever you want to call it. Click a tab, then and icon on the ribbon and disappear.
Instructions:
I derived my own CMyRibbon class by inheriting from CMFCRibbonBar. (Done using Class wizard and making an MFC class)
Create an event handler for WM_SIZE in our new CMyRibbon class (ClassWizard)
void CMyRibbon::OnSize(UINT nType, int cx, int cy)
{
CMFCRibbonBar::OnSize(nType, cx, cy);
if (!(GetHideFlags() & AFX_RIBBONBAR_HIDE_ELEMENTS))
ToggleMimimizeState();
}
In CMainFrm.h add this change:
CMyRibbon m_wndRibbonBar;
Use m_wndRibbonBar.ToggleMimimizeState();
Simply check (m_wndRibbonBar.GetHideFlags() & AFX_RIBBONBAR_HIDE_ELEMENTS) value.
I have some custom control inside of which i should create radiobuttons or checkboxes. The count of child controls is available only at runtime (it loads some file from which it gets this count). So i need to create variable number of controls. Which collection i should use for this purpose?
Solution 1: simply use std::vector<HWND> (or CArray<HWND>) - not suitable because i want use MFC (CButton). Of course i can Attach() and later Detach() handle to window each time i need this window, but it will give big overhead.
Solution 2: use std::vector<CButton*> or CArray<CButton*> or CList<CButton*> or... In this case i take care about making 'new' and appropriate 'delete' when control is unneeded. I am forgetful :)
MFC handle map contains pointer to CButton and i can't use simple CArray<CButton>, because it will move my objects each time when his size will grow.
... and the question is:
Which collection i should use for containing variable count of MFC control classes?
If you only want to read your file with the Count parameter, create your buttons, work with them and later delete them all then CArray<CButton*> is fine in my opinion. To make sure the buttons get deleted you could wrap the CArray into a helper like:
class CMyButtonArrayWrapper
{
public:
CMyButtonArrayWrapper();
virtual ~CMyButtonArrayWrapper();
void ClearArray();
void Add(CButton* theButton);
private:
CArray<CButton*> m_Array;
}
CMyButtonArrayWrapper::CMyButtonArrayWrapper()
{
}
CMyButtonArrayWrapper::~CMyButtonArrayWrapper()
{
ClearArray();
}
void CMyButtonArrayWrapper::ClearArray()
{
for (int i=0; i<m_Array.GetSize(); i++)
{
CButton* aButton=m_Array.GetAt(i);
if (aButton)
delete aButton;
}
m_Array.RemoveAll();
}
void CMyButtonArrayWrapper::Add(CButton* theButton)
{
m_Array.Add(theButton);
}
Then add an object of this class as a member to your custom control (m_MyButtonArrayWrapper) and add your buttons with:
CButton* aButton=new CButton;
aButton->Create( ... );
m_MyButtonArrayWrapper.Add(aButton);
If you need to add and remove buttons randomly a CList might be better suited for performance reasons. (But you won't probably notice a performance difference using InsertAt/RemoveAt of CArray, except your UI has several thousands of buttons. I guess this would be more an artwork than a user interface :))
I have a view which is derived from CEditView. It is read only. I would like to set the text as a kind of logging, but nothing shows up on the screen. If I inspect temp in the debugger after GetEditCtrl().GetWindowText(temp); I can see that the text is indeed changing internally, but I see nothing on the screen.
// HistoryView.cpp : implementation file
//
#include "stdafx.h"
#include "HistoryView.h"
// CHistoryView
IMPLEMENT_DYNCREATE(CHistoryView, CEditView)
CHistoryView::CHistoryView()
{
}
CHistoryView::~CHistoryView()
{
}
BEGIN_MESSAGE_MAP(CHistoryView, CEditView)
END_MESSAGE_MAP()
// CHistoryView diagnostics
#ifdef _DEBUG
void CHistoryView::AssertValid() const
{
CEditView::AssertValid();
}
#ifndef _WIN32_WCE
void CHistoryView::Dump(CDumpContext& dc) const
{
CEditView::Dump(dc);
}
#endif
#endif //_DEBUG
// CHistoryView message handlers
void CHistoryView::OnInitialUpdate()
{
CEditView::OnInitialUpdate();
// TODO: Add your specialized code here and/or call the base class
GetEditCtrl().SetReadOnly(TRUE);
}
//!
/*!
*/
void CHistoryView::AddRow(CString message)
{
CString temp;
GetEditCtrl().GetWindowText(temp);
if(temp.IsEmpty())
{
GetEditCtrl().SetWindowText(message);
}
else
{
GetEditCtrl().SetWindowText(temp + "\r\n" + message);
}
GetEditCtrl().LineScroll(2, 0);
//GetEditCtrl().UpdateWindow(); // no effect
}
The problem seems to lie somewhere other than in the code you posted. I created a new MFC app with the view derived from CEditView, and the code you're using to add the text worked ok, although I did have to wrap the literal "\r\n" inside an explicit temporary CString, as in:
GetEditCtrl().SetWindowText(temp + CString("\r\n") + message);
As Joel says, the problem lies elsewhere. But, there's a bigger problem with what you're doing. Copying the text from the control, appending to the string, then setting the text will have terrible performance once you add more than a few lines of text to the control.
In the past, when I've needed a window to show log messages I've created a view that contains a CListBox control. To add a row, call CListBox::AddString, then when the list-box reaches some maximum number of rows, call CListBox::DeleteString to delete the oldest item. This way, adding rows is always fast and the amount of memory used by the control doesn't grow indefinitely.
If the text is only for display and you don't need it to be editable, I'd suggest you consider using a CListBox instead.
I hope this helps!
In addition to ChrisN's answer, if you want to keep a CEdit, You could use
// sets cursor to end of text
int nCurrentLength= GetEditCtrl().GetWindowTextLength();
GetEditCtrl().SetSel(nCurrentLength,nCurrentLength);
// appends text
GetEditCtrl().ReplaceSel("\r\nMynew line");
Turns out that a third-party UI toolkit was reconstructing the View (who knows why?) so my pointer to it was stale. Thus, I was actually refreshing a different view!